Dictionary and Thesaurus

Definition of Buoyant

• (v. t. & i.) Having the quality of rising or floating in a fluid; tending to rise or float; as, iron is buoyant in mercury.
• (v. t. & i.) Bearing up, as a fluid; sustaining another body by being specifically heavier.
• (v. t. & i.) Light-hearted; vivacious; cheerful; as, a buoyant disposition; buoyant spirits.

Synonyms of Buoyant

• Sprightly
• Spirited
• Vivacious
• Lively
• Light
• Floating
• Hopeful
• Cheerful
• Elastic
• [See JOY].

Antonyms of Buoyant

• Heavy
• Depressed
• Cheerless
• Joyless
• Dejected
• Moody
• Desponding.

Homophones of Buoyant